A DC chopper remains ON for 25μs and OFF for 5μs. What is the value of chopper frequency 1. 50 kHz 2. 200 kHz 3. 40 kHz 4. 33.33 kHz

Petermine aad sketch theout Put wave form the following cincuit belowi Assume in the in Put vol tage 15 Vpp- Si A 5v-

The carrier frequency is 600 Hz, and the modulating signal is a single-tone sinusoidal signal. The x-axis is in time while the y- axis is the amplitude of the AM signal. Determine the type of AM signal in the figure. 2 1.5 0.5 0.5 -1 -1.5 -2 0.005 0.01 0.015 0.02 0.025 0.03 0.035 0.04 0.045 0.05 Time (s) a. DSBFC b. DSBSC c. SSBSC d. VSB

The angle of separation between each point on the twiddle factor unit circle for N=64 is O pi/16 O pi/64 O pi/8 pi/32

In Cisoids a) The imaginary component is related to cosine wave b) Real component is usually larger than imaginary component c) The imaginary component is related to sine wave d) Imaginary component is usually larger than real component

Using a line phasor (circle), draw the two given phasors. Use the sine function as the base function.

What is the magnitude of the rms value of the current in figure Q 15? 40.0 20.0 0.00 -20.0 40.0 a.0 0.0 15.0 Figure Q15 a. 40 A O b. 88 A O c. 62 A O d. 44 A Leave a message

Inspect all these signals and select the correct answer. Sine Square Triangle Sawtooth Some of these signals are not periodic Some of these signals are periodic All these signals are not periodic All these signals are periodic

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A spectrum of modulated signals is given in the figure. What is the expression of this sign in time space?